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<pre><span class="sourceLineNo">001</span>/*-<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Copyright 2017 Diamond Light Source Ltd.<a name="line.2"></a>
<span class="sourceLineNo">003</span> *<a name="line.3"></a>
<span class="sourceLineNo">004</span> * All rights reserved. This program and the accompanying materials<a name="line.4"></a>
<span class="sourceLineNo">005</span> * are made available under the terms of the Eclipse Public License v1.0<a name="line.5"></a>
<span class="sourceLineNo">006</span> * which accompanies this distribution, and is available at<a name="line.6"></a>
<span class="sourceLineNo">007</span> * http://www.eclipse.org/legal/epl-v10.html<a name="line.7"></a>
<span class="sourceLineNo">008</span> */<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>package org.eclipse.january.dataset;<a name="line.10"></a>
<span class="sourceLineNo">011</span><a name="line.11"></a>
<span class="sourceLineNo">012</span>/**<a name="line.12"></a>
<span class="sourceLineNo">013</span> * Class to run over a pair of contiguous datasets<a name="line.13"></a>
<span class="sourceLineNo">014</span> * @since 2.1<a name="line.14"></a>
<span class="sourceLineNo">015</span> */<a name="line.15"></a>
<span class="sourceLineNo">016</span>public class BooleanContiguousIterator extends BooleanIterator {<a name="line.16"></a>
<span class="sourceLineNo">017</span>        private final int cMax; // maximum index in array<a name="line.17"></a>
<span class="sourceLineNo">018</span>        private final int cStep;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>        /**<a name="line.20"></a>
<span class="sourceLineNo">021</span>         * Construct a boolean iterator that stops at the position in choice dataset where its value matches<a name="line.21"></a>
<span class="sourceLineNo">022</span>         * the given boolean<a name="line.22"></a>
<span class="sourceLineNo">023</span>         * @param v boolean value<a name="line.23"></a>
<span class="sourceLineNo">024</span>         * @param a primary dataset<a name="line.24"></a>
<span class="sourceLineNo">025</span>         * @param c choice dataset<a name="line.25"></a>
<span class="sourceLineNo">026</span>         * @param o output dataset, can be null<a name="line.26"></a>
<span class="sourceLineNo">027</span>         * @param createIfNull if true create the output dataset if that is null<a name="line.27"></a>
<span class="sourceLineNo">028</span>         */<a name="line.28"></a>
<span class="sourceLineNo">029</span>        public BooleanContiguousIterator(boolean v, Dataset a, Dataset c, Dataset o, boolean createIfNull) {<a name="line.29"></a>
<span class="sourceLineNo">030</span>                super(v, a, c, o);<a name="line.30"></a>
<span class="sourceLineNo">031</span>                aMax = a.getSize() * aStep;<a name="line.31"></a>
<span class="sourceLineNo">032</span>                cStep = c.getElementsPerItem();<a name="line.32"></a>
<span class="sourceLineNo">033</span>                cMax = c.getSize() * cStep;<a name="line.33"></a>
<span class="sourceLineNo">034</span>                if (outputA) {<a name="line.34"></a>
<span class="sourceLineNo">035</span>                        oStep = aStep;<a name="line.35"></a>
<span class="sourceLineNo">036</span>                } else if (o != null) {<a name="line.36"></a>
<span class="sourceLineNo">037</span>                        oStep = o.getElementsPerItem();<a name="line.37"></a>
<span class="sourceLineNo">038</span>                } else if (createIfNull) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>                        oDataset = BroadcastUtils.createDataset(a, c, a.getShapeRef());<a name="line.39"></a>
<span class="sourceLineNo">040</span>                        oStep = oDataset.getElementsPerItem();<a name="line.40"></a>
<span class="sourceLineNo">041</span>                } else {<a name="line.41"></a>
<span class="sourceLineNo">042</span>                        oStep = 1;<a name="line.42"></a>
<span class="sourceLineNo">043</span>                }<a name="line.43"></a>
<span class="sourceLineNo">044</span>                maxShape = a.getShape();<a name="line.44"></a>
<span class="sourceLineNo">045</span>                reset();<a name="line.45"></a>
<span class="sourceLineNo">046</span>        }<a name="line.46"></a>
<span class="sourceLineNo">047</span><a name="line.47"></a>
<span class="sourceLineNo">048</span>        @Override<a name="line.48"></a>
<span class="sourceLineNo">049</span>        public boolean hasNext() {<a name="line.49"></a>
<span class="sourceLineNo">050</span>                do {<a name="line.50"></a>
<span class="sourceLineNo">051</span>                        index += aStep;<a name="line.51"></a>
<span class="sourceLineNo">052</span>                        cIndex += cStep;<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>                        if (outputA) {<a name="line.54"></a>
<span class="sourceLineNo">055</span>                                oIndex = index;<a name="line.55"></a>
<span class="sourceLineNo">056</span>                        } else {<a name="line.56"></a>
<span class="sourceLineNo">057</span>                                oIndex += oStep;<a name="line.57"></a>
<span class="sourceLineNo">058</span>                        }<a name="line.58"></a>
<span class="sourceLineNo">059</span><a name="line.59"></a>
<span class="sourceLineNo">060</span>                        if (index &gt;= aMax || cIndex &gt;= cMax) {<a name="line.60"></a>
<span class="sourceLineNo">061</span>                                return false;<a name="line.61"></a>
<span class="sourceLineNo">062</span>                        }<a name="line.62"></a>
<span class="sourceLineNo">063</span>                } while (cDataset.getElementBooleanAbs(cIndex) != value);<a name="line.63"></a>
<span class="sourceLineNo">064</span><a name="line.64"></a>
<span class="sourceLineNo">065</span>                return true;<a name="line.65"></a>
<span class="sourceLineNo">066</span>        }<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span>        @Override<a name="line.68"></a>
<span class="sourceLineNo">069</span>        public int[] getPos() {<a name="line.69"></a>
<span class="sourceLineNo">070</span>                return null;<a name="line.70"></a>
<span class="sourceLineNo">071</span>        }<a name="line.71"></a>
<span class="sourceLineNo">072</span><a name="line.72"></a>
<span class="sourceLineNo">073</span>        @Override<a name="line.73"></a>
<span class="sourceLineNo">074</span>        public void reset() {<a name="line.74"></a>
<span class="sourceLineNo">075</span>                index = -aStep;<a name="line.75"></a>
<span class="sourceLineNo">076</span>                cIndex = -cStep;<a name="line.76"></a>
<span class="sourceLineNo">077</span>                oIndex = -oStep;<a name="line.77"></a>
<span class="sourceLineNo">078</span>        }<a name="line.78"></a>
<span class="sourceLineNo">079</span>}<a name="line.79"></a>




























































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